Yarn-spool bearing



Oct. 2, 1928. 1,686,489 E. F. HATHAWAY ET AL YARN SPOOL BEARING Filed 0ct.5, 1923 ably in such closed Patented Get. 2, less.

nnsnn r. EAT AW Y, or WnLLnsLny, Ann WALTER new, on nosron, Messi r onusnrrs, ASSIGNOBS TO srrswnrnr-nezernnn erns 'ooIvrrAnx-or-Bosron, Messrs-r onosnrrs, Aconrone'rron or MASSACHUSETTS. I j

YARN-SPOOL BEARING. 7

Application filed Octbber 5,1923. Serial ilfle. 668,829. r

I This invention isconcerned vith the prob leln of mounting the, yarn-spool of a tube frame in such a manneras to facilitetethe lnsertlon and removal of the yarn-spool in a quick and'convement manner, While make i'ng provision for normally. retaining it against displacement from its supporting case embracing an angularly offset main IarIn 3,-secured rigidly to thecarrier bar-and.

bearings. v

Tothis end the invention comprises, gencrullyspeaking, in, combination with a'ro tatable yarn-spool, supporting bearing brackets one of which is formed with aslottedor open bearing for the spool journal and carries avpivotal latch or keeper mounted to inove into'position to preven of the spool journal through the open slot of itsbearing, said latch being held release position by a suitable self-acting detent" mounted on the bearin bracket. Thisand other novel features'or the invention Will'be pointed out in the following specification and Will-be defined in thefclair'ns. hereto annexed, Y H I Infthe accompanying drawings We have illustrated a constructionand arrangement embodying the principles of this invention, in which:

' F ig'ure l is av'front'elevation jshowingthe yarn' spool mounted in a ,well known type of tube frame. p I j 7 v Figure 2 isan elevationshowing the inside face of the slotted bearing bracket with thecarrier bar of the tube frame in cross section.

Figure 3 is an enlarged edge/ ise view of the upper portion or" thebeuring bracket and itsfconnected latch. I 'Q Fig uret is an inside elevation of the upper part of 'the bearing bracketend latch,

- showing enactuating spring applied to close the '1atch., I v Q f Figure 5 is a perspective view showing the pring detent constructionvat'the upper portion of the bearing bracket, r

I Figure 6 isa niodified view showing the spring detent made and applied as aseparate member, 1 l

- Figure 7 's ahorizontal s'ectionfof the upper' 'end of the'bearing bracket showing the detent. "f

Figure 8 1s a s1 modified form of detent.

Inth drawings; have shown a praCticaL milar View showing a lyjcornplete tube fraine 'ot well known type comprising the usual longitudinal carrier bar 1, tothe front of Whiclrthe tuft guid 7' mg tubes are secured 1n any suitable manner,

the carrier being suspended from. an overhead carrier cha n by means of suspension hangers of any suitable type, in this the movable hook arn spring p'ressed outwardly toward an interposed chain; rorn the-main suspension arxn 3, pro ects up- Wardly the pool-supporting bracket 5,

bored to receiveone journal or" the spool),

whileat the other end asimilar "bearing,

bracket 5, projects fro-in the suspension arm, hutin this case the bearing bracket-'5, tormeduuth an L shaped bearingslotor recess 5 to permit the insertion of the yarnspool journal 6 through the the bearmgbracket. The usual brake spring;

side edge I of 13,? carrying a brake pud 13 engagingthe periphery of one of the heads 6 performsithe usualfunction'ot retarding the spool in order to inaintain: tension on the yarn and; spool through the tuft tubesby itsupwerd- ,pr'essuregLIt ill be obvious that the upward pressure; of

the brake element tends to keep,the'jour 'nal pushed up 111 6-0 tl1$"V1tlCal ,O1 highest; portion ot-the slottedbearing aperture, and

swung into vertical or'bearing-closing'posie tion, 7 a por ion ofthe" latch-serves to obstruct or close the open exitslot of the bearing and thereby prevent the r the journal; 7

side down and at all angles, provision" is mane for releasably locking the latch in its closed or operative position. j "I j The construction employed for this purpose comprises, in the forms shown in'Figures 1 to 3, a springtongue or dentent- 5,

einoval of As the tube frame, inithe'course ofitsg, travel along the carrier cha1n,"1s turnedup pivot stud 15, and is shit Jed solthat'vvhen" struck up integrally out of sheet steel oi the bracket so as to normally lie with its free or severed endprojecting inwardly beyond the plane of the inside face of the bearing bracket 5.- The latch is cut away as shown at to leave a shoulder oredge at 15 in position, when the latch is in closed position, to abut against the end of the spring detent or tongue so as to prevent reverse or opening movement of the latch. By pressing the spring tongue 5 inward to lie flushwith the slot from which it is.

protruded,it is possible to readily swing back the latch to open position.

spring detent is riveted to the adj acent' I portion of the bearing bracket with its oper- Y ative portion bowed suificiently to project through the aperture 5 and engage the shoulder 15, to prevent opening of the latch. It will be seen that the free end of the bowed end of the. spring 20, is carried back 'through'the aperture 5 to overlap the adjacent edge of the aperture, thereby limiting the outward movement of said spring.

The slope of the bowed spring is such that it will yield to the pressure of the latch 15 when the latter is moved ineither direction and, therefore, this form of detent is not positive like the .forms shown in Figures 2 and 5, but on the other hand requires no manipulation being wholly automatic or self-acting bothxas-to forming locking'engagem ent with thelatchv andvas to ts release therefrom.

' v Theform of latch shown inFigure 8 oper- I ates on the same'principle In this case a straight leaf spring 21, is employed and a suitably shaped convex boss 22, is riveted or otherwise secured thereto to torman'engagement with the plvotal latch 15.

V I have shown in Figure 4a latch-closing spring of the torsion type coiled around or slotted side, the spring 50, acting to close the latch againas soon as the journal has :been passed into the upper portion otthe slotted bearing. This form 01 latch is practically safe against permitting the accidental release of thespool journal in view of the fact that the brake spring tends to keep the journal in the upper portion of the. bearing so that accidentalpressure, tending to, open the latch, does not necessar ly release-the journal, andas soon as the accidental pres-. sure isrelieved or ceasesthe latch automatically restores itself to operative position.

latch.

In this case, however, if any additional de tent be used it would be a non-positive of the type illustrated in Figures 7 and 8. 7

While the latch 15%, shown in Figurc't, is easily released by pressure-ofthe finger directly against the latch without'otherma- .nipulation of the detent,'it will be seen that its actuating spring .50 tends to return it to locking or bearing-closing position automati cally. VVhilethis latch yields to the presbearing it will beobserved that no pressure of the journal against the latch tends to, open the latch since the vertical wall of the bearing slot 5", opposite the exit opening,

positively resists any pressure'of the journal in the direction that would tend to open the So far as any pressure of the journal therefore 1s concerned, the ournal acts only to open the latch when it is belng inserted and after insertion, the journal, so far as any pressure'of its own is concerned, is

positively held against removal while the latchis very conveniently and easily opened by lateral pressure thereon to cause it to spring out of line with the detent to permit removal of the spool. This is an entirely novel arrangement ofthis class of device and has obvious advantages quite independently of the use of the detent 20. V

It will be seen that the journal can not escape by anypressure outwardly whether or not the latch be closed, and that to escape from'its bearing it'must move inwardly to ward the pivotal center of the latch where it meets the" obstruction of the journal retaining or confining portionof'the latch which is interposed between the closed end of the bearing slot and said pivotal center. .One I advantage of this arrangement is that if the .latch'be thrown back by the operator there is no danger of the spool falling out even if the tube frame be in its inverted position because thespool must-move inwardly against the pressure of'the spool-. brake before it can escape. I I What we claim isi j p 1. A bearing bracket for a yarn spoolem bracing in combination, a bracket provided with an open; slot bearing to permit passage of the spool journal thereinto, a latch fulcrumed on the bracket, to 'move into 'p osi tion to prevent removal of thejournal and formed to press the journal into the closed end of the bearing slot as it moves to closed position, said bracket being formed with a partly severedportion forming a. projectthe bearing, substantially as described. v

2. A spool-bearing bracket for a tube frame embracing an arm formed"with a laterally opened outwardly closed bearing slot arranged to receive and sustain, out

ward lateral pressure of an inserted spoolprevent the accidental opening of the latch, I

the latch being displaceable by 'sidewise pressure to enable it to clear the detent when being opened by the operator.

3. A spool-bearing bracket for a tubeframe embracing in combination a spoolhearing armformed with an open bearing slot whose closed end is disposed to resist outward lateral'thrust of the spool, a selfclosing latch pivotally mounted'on said arm to swing transversely of the spool axis to close the-bearing slot against escape of the journal and self-acting means for locking the latch against accidental opening while allowing the latch to be swung open when sprung laterally out of engagement with its locking means. 1 I c 4. A spool-bearing bracket for a tube frame embracing incombination a bearing arm'provided with an open slot-bearing for rotatably supporting a spool journal, a latch pivotally mounted on said arm to interpose a' journal-retaining portion between the closed end of the slot and the pivotal center of the latch. i n

5. A spool-bearing bracket for a tube frame embracing incombinationa bearing arm provided with an open slot bearing for rotatably supporting a spool-j ournal a latch pivotally mountedon said arm to interpose' a journal retaining portion between the closed endof the slot and the pivotal center of'the latch; and self-acting means for V engaging said latch when the latch'is moved to closed position and prevent the latch from accidental movement away from its closed position. f;

In witness whereof, we have subscribed he above specification.

EDGAR F. HATHAWAY. WALTER IX 

